Brief description: Spawned and activated AA rotates and aims very slowly and they are not able to shoot at the approaching enemy aircraft.
Detailed description, conditions: There are two bugs in the AA:
1. Spawned by MCU_Trigger: Spawner AA rotates and aims very slowly.
2. Activated by MCU_Trigger: Activate AA behaves as above but only for the first time. If it's deactivated and activated again (e.g. by check zone) in the same mission then it shoots normally.